Add missing type hints to config classes. (#12402)

1 files changed, 6 insertions, 2 deletions

diff --git a/synapse/config/groups.py b/synapse/config/groups.py
index 15c2e64bda..c9b9c6daad 100644
--- a/synapse/config/groups.py
+++ b/synapse/config/groups.py
@@ -12,17 +12,21 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from typing import Any
+
+from synapse.types import JsonDict
+
 from ._base import Config
 
 
 class GroupsConfig(Config):
     section = "groups"
 
-    def read_config(self, config, **kwargs):
+    def read_config(self, config: JsonDict, **kwargs: Any) -> None:
         self.enable_group_creation = config.get("enable_group_creation", False)
         self.group_creation_prefix = config.get("group_creation_prefix", "")
 
-    def generate_config_section(self, **kwargs):
+    def generate_config_section(self, **kwargs: Any) -> str:
         return """\
         # Uncomment to allow non-server-admin users to create groups on this server
         #